Fix issue#261: mesh becomes invisible if associated geom and topo entities in same group

[lelandaisb]

Mesh is invisible if topo entity and geom entity belong to the same group

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 48.87%. Comparing base (1eb2502) to head (3e1b1a7).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #231      +/-   ##
==========================================
+ Coverage   48.84%   48.87%   +0.02%     
==========================================
  Files         466      466              
  Lines       50507    50514       +7     
==========================================
+ Hits        24672    24690      +18     
+ Misses      25835    25824      -11     

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[nicolaslg]

I might have missed something, but running this script

# Création d'une boite avec une topologie
ctx.getTopoManager().newBoxWithTopo (Mgx3D.Point(0, 0, 0), Mgx3D.Point(1, 1, 1), 10, 10, 10)
# Annulation de : Création d'une boite avec une topologie
ctx.undo()
# Création d'une boite avec une topologie
ctx.getTopoManager().newBoxWithTopo (Mgx3D.Point(0, 0, 0), Mgx3D.Point(1, 1, 1), 10, 10, 10, "aaa")
# Modifie le groupe aaa
ctx.getTopoManager().addToGroup (["Bl0000"], 3, "aaa")
# Création du maillage pour tous les blocs
ctx.getMeshManager().newAllBlocksMesh()

the mesh is not displayed ?